Agree. And the fact that Merritt owed Joey so much knowing that he couldn't really ask JM for more until he at least attempted to pay JM back some of what he owed. And Merritt needed money ASAP, and could not wait because he had a gambling addiction to feed and bills to pay, like a drug addict needing an instant fix.This is why Chase arguing that Joey gave him permission to write out cheques is a complete and utter lie.
Nobody would give somebody that kind of leverage when they owe them so much money and that’s before we even get to the fact Chase had been in jail for theft.
The only way he could see to do that IMO was to murder JM and his family to gain access to the money. He knew if Joey or Summer were still alive he would go back to prison once his fraud was discovered, as i think Joey did discover that just before the murders, per MM's testimony. And i don't even want to think of why he murdered two beautiful innocent little boys, only an enraged & demented killer would know the answer to that.
All IMO.